Monaco got two goals from Radamel Falcao in their 6-1 rout of Marseille on Sunday. Getty Images

In-form Radamel Falcao scored twice as champions Monaco extended their 100 percent start to the season with an emphatic 6-1 victory over Ligue 1 rivals Marseille.

The Colombia international striker powered home a penalty and then netted with a diving header to take his tally to seven goals in four league games and move Monaco onto 12 points alongside leaders Paris Saint-Germain.

Poland defender Kamil Glik had volleyed the hosts into an early lead at Stade Louis II, before Falcao's double and Adama Diakhaby's close-range finish made it 4-0 at the break.

Djibril Sidibe added the fifth and, after Remy Cabella's consolation, Fabinho completed the scoring with Monaco's second penalty of the evening.

Monaco's 18-year-old striker Kylian Mbappe, a target for rivals PSG, was named on the bench on Sunday but he was not needed as Leonardo Jardim's side blew away their opponents with a blistering first-half performance.

Centre-back Glik got the ball rolling by volleying Thomas Lemar's free kick into the bottom left corner inside two minutes.

Summer signing Diakhaby almost doubled the advantage moments later when he raced clear before his low shot was tipped onto the left upright by Marseille goalkeeper Steve Mandanda.

The hosts did not have to wait too long for the second though and Falcao smashed down the middle from the spot in the 20th minute after Fabinho was tripped in the area by Aston Villa loanee Jordan Amavi.

Former Manchester United and Chelsea striker Falcao then nodded in following a free kick into the box, before Diakhaby tapped in Rony Lopes' right-wing centre.

Marseille lost 4-0 in this fixture last season but things got worse in the second half as defender Sidibe headed in the rebound after Glik's initial header came back off a post in the 68th minute.

Winger Cabella turned in Florian Thauvin's drilled cross to reduce the deficit slightly with 15 minutes remaining, but the hosts had the final word.

Ruddy Buquet was tripped just inside the 18-yard box by Marseille defender Hiroki Sakai and, with Falcao having been substituted, Fabinho coolly converted the resulting spot-kick into the bottom right corner.

Earlier in the day, second-half strikes from Mustapha Diallo and Jimmy Briand earned Guingamp a first win since the opening weekend of the season as they beat Strasbourg 2-0.

Nicolas de Preville produced a stunning equaliser in Sunday's other game as Lille hit back to draw 1-1 at unbeaten Angers following Lassana Coulibaly's opener.